DYTISCUS. 67 



SPECIFICATION. 



Dytiscus cinereus. Dy. elytrorum margine tho- 

 racisque medietate flavis. Linn, Si/st. Nat. p. 666. 

 Gmel. p. 1946. Fabr. Si/st. Ent. p. 231. Spec. 

 Ins. l.p. 293. Mant. Ins. 1. p. 190. 



Degeer, Ins. 4. p. 397. No. 4. 



Roesel, Ins. 2. Aquat. Class 1. 1. S.f. 6. 



Schaeff. Icon. Ins. t. 9a./. 7. 



Inhabits Europe, and is very common in stagnant 

 waters. 



PI. 24. a. A horn. b. A hind-leg. c. A fore-leg. 



